linux-kernel - Re: [PATCH] docs: proc: update VmFlags documentation in smaps

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Message-Id: <20250607142505.e58fda734ce54167724705a3@linux-foundation.org>
Date: Sat, 7 Jun 2025 14:25:05 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Tal Zussman <tz2294@...umbia.edu>
Cc: wangfushuai <wangfushuai@...du.com>, corbet@....net, david@...hat.com,
 andrii@...nel.org, npache@...hat.com, catalin.marinas@....com,
 xu.xin16@....com.cn, linux-kernel@...r.kernel.org,
 linux-fsdevel@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH] docs: proc: update VmFlags documentation in smaps

On Sat, 7 Jun 2025 13:03:30 -0400 Tal Zussman <tz2294@...umbia.edu> wrote:

> On Sat, Jun 7, 2025 at 11:36 AM wangfushuai <wangfushuai@...du.com> wrote:
> > Remove outdated VM_DENYWRITE("dw") reference and add missing
> > VM_LOCKONFAULT("lf") and VM_UFFD_MINOR("ui") flags.
> 
> VM_DROPPABLE ("dp") is also missing, would be nice to add it as well.
> 

Thanks.  How's this?


--- a/Documentation/filesystems/proc.rst~docs-proc-update-vmflags-documentation-in-smaps-fix
+++ a/Documentation/filesystems/proc.rst
@@ -610,6 +610,7 @@ encoded manner. The codes are the follow
     ss    shadow/guarded control stack page
     sl    sealed
     lf    lock on fault pages
+    dp    always lazily freeable mapping
     ==    =======================================
 
 Note that there is no guarantee that every flag and associated mnemonic will
_